`yun851.com`

DNSSEC	⚠️ Not signed
A	18.166.174.197^{🇭🇰 Amazon18.166.0.0/15 EC2 HKG prefix}
		PTR	`ec2-18-166-174-197.ap-east-1.compute.amazonaws.com`
A	45.156.221.11^{🇺🇸 DDOS-PROTECTION-LTD45.156.221.0/24}
A	45.156.221.12^{🇺🇸 DDOS-PROTECTION-LTD45.156.221.0/24}
A	45.156.221.13^{🇺🇸 DDOS-PROTECTION-LTD45.156.221.0/24}
A	45.156.221.14^{🇺🇸 DDOS-PROTECTION-LTD45.156.221.0/24}
A	54.46.75.85^{🇺🇸 Amazon54.46.0.0/17 EC2 HKG prefix}
A	156.240.110.244^{🇭🇰 HKCICL-AS-AP156.240.110.0/24 HONG KONG COMMUNICATIONS INTERNATIONAL CO.,LIMITED}
A	156.240.110.248^{🇭🇰 HKCICL-AS-AP156.240.110.0/24 HONG KONG COMMUNICATIONS INTERNATIONAL CO.,LIMITED}
A	210.79.61.18^{🇭🇰 EDTCL-HK210.79.61.0/24 EVERY DAY TECHNOLOGY CO. LIMITED UNIT 04,7/F,BRIGHT WAY TOWER,NO.33}
NS	`edns153.ultradns.com` ⭐ ⚠️ Not in parent delegation
		A	2001:502:f3ff::299^{🇺🇸 MAINT-ID-120082001:502:f3ff::/48 Neustar}
			PTR	`edns153.ultradns.com`
		A	204.74.66.153^{🇺🇸 MAINT-ID-12008204.74.66.0/24 Neustar}
			PTR	`edns153.ultradns.com`
NS	`edns153.ultradns.biz` ⚠️ Not in parent delegation
		A	2610:a1:1015::299^{🇺🇸 MAINT-ID-120082610:a1:1015::/48 Neustar}
			PTR	`edns153.ultradns.biz`
		A	204.74.67.153^{🇺🇸 MAINT-ID-12008204.74.67.0/24 Neustar}
			PTR	`edns153.ultradns.biz`
NS	`edns153.ultradns.net` ⚠️ Not in parent delegation
		A	2610:a1:1014::299^{🇺🇸 MAINT-ID-120082610:a1:1014::/48 Neustar}
			PTR	`edns153.ultradns.net`
		A	204.74.110.153^{🇺🇸 MAINT-ID-12008204.74.110.0/24 Neustar}
			PTR	`edns153.ultradns.net`
NS	`edns153.ultradns.org` ⚠️ Not in parent delegation
		A	2001:502:4612::299^{🇺🇸 MAINT-ID-120082001:502:4612::/48 Neustar}
			PTR	`edns153.ultradns.org`
		A	204.74.111.153^{🇺🇸 MAINT-ID-12008204.74.111.0/24 Neustar}
			PTR	`edns153.ultradns.org`
NS	`pdns104.ultradns.biz` ⚠️ Not in zone NS records
		A	2610:a1:1015::8c^{🇺🇸 MAINT-ID-120082610:a1:1015::/48 Neustar}
			PTR	`pdns104.ultradns.biz`
		A	156.154.66.104^{🇺🇸 MAINT-ID-12008156.154.66.0/24 Neustar}
			PTR	`pdns104.ultradns.biz`
NS	`pdns104.ultradns.com` ⚠️ Not in zone NS records
		A	2001:502:f3ff::8c^{🇺🇸 MAINT-ID-120082001:502:f3ff::/48 Neustar}
			PTR	`pdns104.ultradns.com`
		A	156.154.64.104^{🇺🇸 MAINT-ID-12008156.154.64.0/24 Neustar}
			PTR	`pdns104.ultradns.com`
NS	`pdns104.ultradns.net` ⚠️ Not in zone NS records
		A	2610:a1:1014::8c^{🇺🇸 MAINT-ID-120082610:a1:1014::/48 Neustar}
			PTR	`pdns104.ultradns.net`
		A	156.154.65.104^{🇺🇸 MAINT-ID-12008156.154.65.0/24 Neustar}
			PTR	`pdns104.ultradns.net`
NS	`pdns104.ultradns.org` ⚠️ Not in zone NS records
		A	2001:502:4612::8c^{🇺🇸 MAINT-ID-120082001:502:4612::/48 Neustar}
			PTR	`pdns104.ultradns.org`
		A	156.154.67.104^{🇺🇸 MAINT-ID-12008156.154.67.0/24 Neustar}
			PTR	`pdns104.ultradns.org`
SOA	`edns153.ultradns.com`zhanghang8819@gmail.com 2022-09-26 #3

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1784503372

Same first word

yun851.com

Similar names

yun518.com

DNS History

27 records (17 active, 10 former)

●NSedns153.ultradns.biz2026-02-27 → 2026-07-19 · 3 obs

○ 2018-08-29 13:50:26
● 2026-02-27 21:09:10
● 2026-07-19 23:26:16

●NSedns153.ultradns.com2026-02-27 → 2026-07-19 · 3 obs

○ 2018-08-29 13:50:26
● 2026-02-27 21:09:10
● 2026-07-19 23:26:16

●NSedns153.ultradns.net2026-02-27 → 2026-07-19 · 3 obs

○ 2018-08-29 13:50:26
● 2026-02-27 21:09:10
● 2026-07-19 23:26:16

●NSedns153.ultradns.org2026-02-27 → 2026-07-19 · 3 obs

○ 2018-08-29 13:50:26
● 2026-02-27 21:09:10
● 2026-07-19 23:26:16

○NSjuming.dnsdun.com2018-08-29 → 2018-08-29 · 4 obs

○ 2016-09-22 16:46:32
● 2018-08-29 13:50:26
○ 2026-02-27 21:09:10
○ 2026-07-19 23:26:16

○NSjuming.dnsdun.net2018-08-29 → 2018-08-29 · 4 obs

○ 2016-09-22 16:46:32
● 2018-08-29 13:50:26
○ 2026-02-27 21:09:10
○ 2026-07-19 23:26:16

○NSns11.xincache.com2015-06-09 → 2015-06-09 · 3 obs

● 2015-06-09 23:56:06
○ 2015-10-25 02:38:42
○ 2026-07-19 23:26:16

○NSns12.xincache.com2015-06-09 → 2015-06-09 · 3 obs

● 2015-06-09 23:56:06
○ 2015-10-25 02:38:42
○ 2026-07-19 23:26:16

○NSns17.xincache.com2015-10-25 → 2016-09-22 · 5 obs

○ 2015-06-09 23:56:06
● 2015-10-25 02:38:42
● 2016-09-22 16:46:32
○ 2018-08-29 13:50:26
○ 2026-07-19 23:26:16

○NSns18.xincache.com2015-10-25 → 2016-09-22 · 5 obs

○ 2015-06-09 23:56:06
● 2015-10-25 02:38:42
● 2016-09-22 16:46:32
○ 2018-08-29 13:50:26
○ 2026-07-19 23:26:16

●NSpdns104.ultradns.biz2026-02-27 → 2026-07-19 · 3 obs

○ 2018-08-29 13:50:26
● 2026-02-27 21:09:10
● 2026-07-19 23:26:16

●NSpdns104.ultradns.com2026-02-27 → 2026-07-19 · 3 obs

○ 2018-08-29 13:50:26
● 2026-02-27 21:09:10
● 2026-07-19 23:26:16

●NSpdns104.ultradns.net2026-02-27 → 2026-07-19 · 3 obs

○ 2018-08-29 13:50:26
● 2026-02-27 21:09:10
● 2026-07-19 23:26:16

●NSpdns104.ultradns.org2026-02-27 → 2026-07-19 · 3 obs

○ 2018-08-29 13:50:26
● 2026-02-27 21:09:10
● 2026-07-19 23:26:16

●A156.240.110.2442026-04-12 → 2026-07-19 · 3 obs

○ 2026-02-27 21:09:10
● 2026-04-12 15:51:16
● 2026-07-19 23:26:16

●A156.240.110.2482026-04-12 → 2026-07-19 · 3 obs

○ 2026-02-27 21:09:10
● 2026-04-12 15:51:16
● 2026-07-19 23:26:16

○A16.162.235.1652026-02-27 → 2026-02-27 · 4 obs

○ 2018-08-29 13:50:26
● 2026-02-27 21:09:10
○ 2026-04-12 15:51:16
○ 2026-07-19 23:26:16

●A18.166.174.1972026-02-27 → 2026-07-19 · 3 obs

○ 2018-08-29 13:50:26
● 2026-02-27 21:09:10
● 2026-07-19 23:26:16

●A210.79.61.182026-04-12 → 2026-07-19 · 3 obs

○ 2026-02-27 21:09:10
● 2026-04-12 15:51:16
● 2026-07-19 23:26:16

○A35.229.226.442026-04-12 → 2026-05-13 · 5 obs

○ 2026-02-27 21:09:10
● 2026-04-12 15:51:16
● 2026-05-13 18:06:48
○ 2026-07-19 23:26:14
○ 2026-07-19 23:26:16

○A43.198.198.1072026-02-27 → 2026-02-27 · 4 obs

○ 2018-08-29 13:50:26
● 2026-02-27 21:09:10
○ 2026-04-12 15:51:16
○ 2026-07-19 23:26:16

●A45.156.221.112026-04-12 → 2026-07-19 · 3 obs

○ 2026-02-27 21:09:10
● 2026-04-12 15:51:16
● 2026-07-19 23:26:16

●A45.156.221.122026-04-12 → 2026-07-19 · 3 obs

○ 2026-02-27 21:09:10
● 2026-04-12 15:51:16
● 2026-07-19 23:26:16

●A45.156.221.132026-05-13 → 2026-07-19 · 3 obs

○ 2026-04-12 15:51:16
● 2026-05-13 18:06:48
● 2026-07-19 23:26:16

●A45.156.221.142026-05-13 → 2026-07-19 · 3 obs

○ 2026-04-12 15:51:16
● 2026-05-13 18:06:48
● 2026-07-19 23:26:16

●A54.46.75.852026-02-27 → 2026-07-19 · 3 obs

○ 2018-08-29 13:50:26
● 2026-02-27 21:09:10
● 2026-07-19 23:26:16

○A58.42.234.1992015-06-09 → 2016-09-22 · 4 obs

● 2015-06-09 23:56:06
● 2016-09-22 16:46:32
○ 2018-08-29 13:50:26
○ 2026-07-19 23:26:16

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
yun851.com	pdns104.ultradns.net, pdns104.ultradns.com, pdns104.ultradns.biz, pdns104.ultradns.org	2 records

✅ Authoritative Response

Server:156.154.67.104

NS records: pdns104.ultradns.net, pdns104.ultradns.com, pdns104.ultradns.biz, pdns104.ultradns.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for yun851.com (unsigned zone)

⏱️ Timing

Total: 722ms | Queries: -

📄 Records

Type	Count	Sample Data
A	9	`54.46.75.85, 156.240.110.248...`
NS	4	`edns153.ultradns.biz, edns153.ultradns.com...`
SOA	1	`edns153.ultradns.com zhanghang8819.gmail`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (pdns104.ultradns.com, pdns104.ultradns.com)

Analysis

IP Addresses

yun851.com has 9 IP addresses — 18.166.174.197, 45.156.221.11, 45.156.221.12 and 6 more.

kaiy188.com, 4164y.com, y7370.com and two other host names share IP numbers with yun851.com.

Name Servers

yun851.com carries NS records listing 8 name servers — edns153.ultradns.biz, pdns104.ultradns.biz, edns153.ultradns.com and 5 others.

yun851.com partially shares its NS delegation with several other domains, including 10533ky.com, cnjp5g0s.com, libertycorporatebenefits-ieb.co.za and two others.

In DNS configurations, these name servers often share authority with pdns104.ultradns.com, pdns104.ultradns.net, pdns104.ultradns.org and 7 other name servers.

Hostnames that resolve to two IP addresses:

The A records for edns153.ultradns.biz return 204.74.67.153 and 2610:a1:1015::299.

The A records for pdns104.ultradns.biz return 156.154.66.104 and 2610:a1:1015::8c.

The A records for edns153.ultradns.com return 204.74.66.153 and 2001:502:f3ff::299.

The A records for pdns104.ultradns.com return 156.154.64.104 and 2001:502:f3ff::8c.

The A records for edns153.ultradns.net return 204.74.110.153 and 2610:a1:1014::299.

The A records for pdns104.ultradns.net return 156.154.65.104 and 2610:a1:1014::8c.

The A records for edns153.ultradns.org return 204.74.111.153 and 2001:502:4612::299.

The A records for pdns104.ultradns.org return 156.154.67.104 and 2001:502:4612::8c.